Does Reverse Osmosis Remove Bacteria?

Does Reverse Osmosis Remove Bacteria?

Water is essential to all of us, yet some of us don’t seem to be grateful for having free access to safe drinking water. Imagine the situation where major communities in Africa don’t have access to clean, fresh drinking water and there is nothing they can do about it. 

Their best bet is to rely on health organizations and humanitarian foundations that will come and try to help with the use of the highest purifying technology.

On the other hand, in Western society, that is not the case. Still, although we might think it is safe, even the tap water we have access to is not the best quality. Why? Because the tap water we get contains heavy metals, as well as pathogens and bacteria that could be harmful to your health.

What is Reverse Osmosis in the First Place?

That is where water purifiers come in, and although certain natural methods like using the sun rays, gravity, or boiling, may allow you to purify your water yourself, water purifiers still are the most efficient way to get rid of all the harmful compounds that tap water may include.

While the market is huge, it is absolutely safe to say that the water systems using reverse osmosis have the highest quality because reverse osmosis is a five-stage method that efficiently removes almost any heavy metal traces, chemicals, as well as pathogens. But the big question is – does reverse osmosis remove bacteria? Read on to find out.

What is Reverse Osmosis in the First Place?

As mentioned above, the reverse osmosis method is the most efficient out of all known water purification methods, mostly because it removes various pathogens as well as manmade chemicals, ions and dissolved heavy metal compounds.

The way it works is by applying pressure to the internal membrane of harmful compounds and thus eliminating them from your tap water. And while it might not be the fastest method out there, it sure is an all-inclusive one.

Still, not all water purifying systems are using reverse osmosis as an optimal solution because it is not the cheapest. Water purifiers that are based on carbon filters are much cheaper, making them a popular option, but they can only do so much.

If you have already decided to get a water purifier that will allow you to drink healthy, fresh, and tasty water, we recommend you spend those extra few dollars and get one that is worth your money and includes the reverse osmosis method.

How Does it Work?

Reverse osmosis is a five-stage process. It starts off by using the so-called propylene sediment filter which takes care of all the solid substance traces that your tap water may contain. Here, we are mostly talking about sediments, some metals as well as common sand.

Bacteria aren’t covered by this stage mostly due to the fact that bacteria are neither large nor solid enough to be captured in this removal stage.

Once that is done, the process of reverse osmosis goes to the next stage which is the use of common carbon filters. Carbon filters are an effective method to remove manmade chemicals, herbicides, pesticides, as well as the certain type of pathogens.

Still, the bacteria aren’t removed here either, but you can expect to have tasty and odor-free tap water by the end of this stage.

The third stage might be the most important one and it is highlighted by the membrane that allows only H2O molecules to pass the test. Molecules other than water ones don’t have the adequate amount of pressure to push through and are usually left behind.

How Does it Work?

This is the stage where both bacteria and virus molecules will be removed. Bacteria are too large in size to pass through this semi-permeable reverse osmosis membrane.

Still, this doesn’t mean that your water is completely safe from bacteria, as these molecules are known to push through the layer by finding defects in the membrane and by making their own way through.

It is enough that just one bacteria molecule finds a spot, and all the rest will follow. That is why repeating the process a few times is your best bet if you are concerned about removing bacteria from your tap water.

​Final Thoughts

​Reverse osmosis stands as the most complete water purifying process out of all of the available options. And there is a good reason why; this five-stage method will do its best not to leave any harmful heavy metals, chemicals, bacteria and virus molecules behind so that you and your family can safely enjoy fresh, safe, clean water.

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